公开(公告)号：US06486759B2

公开(公告)日：2002-11-26

申请号：US09725536

申请日：2000-11-29

申请人： Tony Hui Haugh ,  Jaymin Sharad Patel ,  Joseph Criniti ,  Javier Ignacio Larranaga ,  Pedro Acevedo

发明人： Tony Hui Haugh ,  Jaymin Sharad Patel ,  Joseph Criniti ,  Javier Ignacio Larranaga ,  Pedro Acevedo

IPC分类号： H01H8102

CPC分类号： H01H71/7436 ,  H01H2071/7472

摘要： A molded case circuit breaker that includes a double headed calibration screw. The calibration screw has a first and second end with identical convex tip surfaces and screw driver engagement surfaces. The convex tip surface is suitable for engaging a bi-metal thermal overload element. The screw driver engagement surface is suitable for applying a screw driver to adjust the calibration screw position in order to adjust the deflection of the bimetal and calibrate the thermal overload protection. At least one calibration screw planar surface allows for improved sealant injection to permanently fix the screw position and associated calibration setting following adjustment.

摘要翻译： 包括双头校准螺丝的塑壳断路器。 校准螺钉具有第一和第二端，其具有相同的凸顶表面和螺丝刀接合表面。 凸顶表面适于接合双金属热过载元件。 螺丝刀接合表面适用于施加螺丝刀以调节校准螺丝位置，以便调节双金属片的偏转并校准热过载保护。 至少一个校准螺丝平面允许改进的密封剂注入，以在调整后永久地固定螺钉位置和相关联的校准设置。